Effects on Mixture Sowing Ratio on the Yield and Quality of both Vetch and Oat in Tibet

The yield and quality of both Vetch(Avena sativa L.)+Oat(Vicia sativa L.) artificial grassland were measured and analyzed based on forage yield and crude protein(CP),neutral detergent fiber(NDF),acid detergent fiber(ADF).Results showed that mixture sowing was an effective measure to increase and maintain higher yield,and increase crude protein yield per hectare.As the sowing ratio of vetch increased,the content of CP increased but the content of NDF and ADF decreased.The best sowing ratio was 210 kg·hm-2 vetch plus 75 kg·hm-2 oat among the different mixtures.This ratio has higher forage yield and better quality.It is a practical recommendation to introduce in the Shigaste region of Tibet.